Test Mode Procedure

HINT:

• Before entering Test Mode, check and repair any current VGRS DTCs.
• When entering test mode, the 4 sensor check DTCs are recorded at once. When the ECU judges that the sensor is normal during the test procedure, the DTC will be eliminated.

Fig 1: Identifying DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Procedure for Sensor Test Mode using a SST check wire.
   1. Make sure the ignition switch is OFF.
   2. Using SST, connect terminals 12 (TS) and 4 (CG) of the DLC3.

      SST 09843-18040 

   3. Turn the ignition switch ON.
   4. Check that the VGRS warning light is blinking.

      HINT:

      If the VGRS warning light does not blink, inspect the warning light or TS terminal circuits.

      TROUBLE AREA REFERENCE
      
      

      Trouble Area	See Procedure
      TS and CG terminal circuit	TC and CG Terminal Circuit
      VGRS warning light circuit	VGRS Warning Light Circuit

      Fig 2: Identifying VGRS Warning Light Blinking Pattern

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   5. Start the engine.
   6. Turn the steering wheel from lock to lock.
      NOTE:

      • Check for any unusual feeling in the steering wheel operation.
      • Slowly turn the steering wheel from lock to lock. Check that it rotates approximately 2.4 turns.

      HINT:

      • The warning light display has no change.
      • If the actuator moving amount is correctly checked, DTCs C1575/75 and C1576/76 in the test mode are cleared.
   7. Drive the vehicle at more than 10 km/h (6 mph) for 15 to 30 seconds.

      HINT:

      If the vehicle speed sensor is correctly checked, DTCs C1571/71 and C1572/72 in the test mode are cleared.

      Fig 3: Identifying Situation Of VGRS Warning Light When Driving

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   8. Stop the vehicle. Leave the engine running.
   9. Using SST, connect terminal of SST to terminal 13 (TC) of DLC3.

      SST 09843-18040 

   10. Read the number of blinks of the VGRS warning light. (Refer to the chart below.)
       Fig 4: Identifying DLC3 Connector Terminals

       Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

       HINT:

       • If all wheel speed sensors are normal, the normal blinking code is output. (A repeating cycle of 0.25 seconds ON and 0.25 seconds OFF.)
       • If 2 or more faults are detected at the same time, the lowest number will be displayed first.
       Fig 5: Identifying Malfunction Code Blinking Pattern

       Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   11. After completing the check, disconnect SST from DLC3 and turn the ignition switch OFF.
2. Procedure for Sensor Test Mode using the intelligent tester.
   1. Connect the intelligent tester (with CAN VIM) to the DLC3.
   2. Turn the ignition switch ON.
   3. Complete the VGRS Test Mode following the prompts on the tester screen.

      HINT:

      Refer to the intelligent tester operator's manual for further details.

   4. Read the DTCs.
   5. After completing the test, disconnect the tester and turn the ignition switch OFF.

DTC of VGRS sensor check function: